CA1157079A - Signal condition detection circuit with self-adjusting threshold - Google Patents

Signal condition detection circuit with self-adjusting threshold

Info

Publication number
CA1157079A
CA1157079A CA000355567A CA355567A CA1157079A CA 1157079 A CA1157079 A CA 1157079A CA 000355567 A CA000355567 A CA 000355567A CA 355567 A CA355567 A CA 355567A CA 1157079 A CA1157079 A CA 1157079A
Authority
CA
Canada
Prior art keywords
signal
circuit
input
output
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000355567A
Other languages
English (en)
French (fr)
Inventor
Wesley D. Boyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Motor Company of Canada Ltd
Original Assignee
Ford Motor Company of Canada Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford Motor Company of Canada Ltd filed Critical Ford Motor Company of Canada Ltd
Application granted granted Critical
Publication of CA1157079A publication Critical patent/CA1157079A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • F02P7/07—Hall-effect pick-up devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Electrical Control Of Ignition Timing (AREA)
CA000355567A 1979-08-08 1980-07-07 Signal condition detection circuit with self-adjusting threshold Expired CA1157079A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/064,699 US4293814A (en) 1979-08-08 1979-08-08 Crankshaft position sensor circuitry for providing stable cyclical output signals without regard to peak to peak variations in sensor signals
US64,699 1979-08-08

Publications (1)

Publication Number Publication Date
CA1157079A true CA1157079A (en) 1983-11-15

Family

ID=22057721

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000355567A Expired CA1157079A (en) 1979-08-08 1980-07-07 Signal condition detection circuit with self-adjusting threshold

Country Status (5)

Country Link
US (1) US4293814A (ja)
EP (1) EP0024836B1 (ja)
JP (1) JPS5633510A (ja)
CA (1) CA1157079A (ja)
DE (1) DE3068199D1 (ja)

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KR102267082B1 (ko) 2014-03-11 2021-06-18 알레그로 마이크로시스템스, 엘엘씨 스레쉬홀드들의 최소의 분리를 유지하는 자기장 센서 및 상응하는 센싱 방법
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US11079254B2 (en) 2018-08-22 2021-08-03 Christopher James Hahn Magnet rangefinder
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US11125590B2 (en) 2019-05-07 2021-09-21 Allegro Microsystems, Llc System and method for vibration detection with direction change response immunity using a magnetic field sensor

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Also Published As

Publication number Publication date
DE3068199D1 (en) 1984-07-19
JPS5633510A (en) 1981-04-04
EP0024836A1 (en) 1981-03-11
EP0024836B1 (en) 1984-06-13
US4293814A (en) 1981-10-06

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Legal Events

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